Table 1 Participants’ baseline characteristics

Age (months)^a

12.18 ± 4.35

11.92 ± 5.60

15.57 ± 3.502

0.084

Weight (kilogram)^a

9.25 ± 1.34

9.94 ± 1.01

10.46 ± 1.37

0.066

Gender (male)^b

10 (76.9%)

10 (62.5%)

12 (63.2%)

0.655

Duration of disease (months)^a

0.27 ± 0.19

3.46 ± 2.88

0.06 ± 0.04

 < 0.05

Blood eosinophils (%)^a

2.11 ± 2.11

2.32 ± 1.70

2.28 ± 1.26

0.992

White blood cell count (× 10⁶/g) ^a

9.29 ± 3.61

11.24 ± 4.10

9.24 ± 2.28

0.245

Fe–NO (ppb)^c

10.64 ± 3.78

9.69 ± 3.61

-

0.539

Tidal volume (mL/kg)^c

8.58 ± 1.45

7.86 ± 1.56

-

0.264

VPEF/VE (%)^c

20.23 ± 2.58

22.77 ± 5.61

-

0.181

TPEF/TE (%)^c

17.16 ± 3.96

20.57 ± 7.14

-

0.174

Respiratory rate (times/min)^c

32.09 ± 8.17

30.77 ± 7.04

-

0.674